MAL-2026-17206

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/kalasnik-npm-simple-test/MAL-2026-17206.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17206
Aliases
  • GHSA-pm4h-xrhq-vh62
Published
2026-09-28T06:44:46Z
Modified
2026-09-28T18:30:06Z
Summary
Malicious code in kalasnik-npm-simple-test (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (f1463688412306d5d6f791bb036bea59aeb7251a3044a52c57119768f27cd463)

The package's postinstall script send_data.js runs automatically on npm install. It reads C:\temp\test.txt from the installer's filesystem and POSTs the contents over plain HTTP to a hardcoded remote endpoint at 35.178.197.251:8080. Package metadata ("Simplified test", author "Purple", UNLICENSED) is consistent with a PoC exfiltration harness rather than a legitimate library.

Source: ghsa-malware (892887d57c2d036af7c30a0a27995006f042229dd0959c7653a5560054277cbe)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "GHSA-pm4h-xrhq-vh62",
            "import_time":  "2026-09-28T06:54:43.338562409Z",
            "modified_time":  "2026-09-28T06:44:47Z",
            "ranges":  [
                {
                    "events":  [
                        {
                            "introduced":  "0"
                        }
                    ],
                    "type":  "SEMVER"
                }
            ],
            "sha256":  "892887d57c2d036af7c30a0a27995006f042229dd0959c7653a5560054277cbe",
            "source":  "ghsa-malware"
        },
        {
            "id":  "IN-MAL-2026-020593",
            "import_time":  "2026-09-28T18:24:38.78179332Z",
            "modified_time":  "2026-09-28T18:05:38Z",
            "sha256":  "f1463688412306d5d6f791bb036bea59aeb7251a3044a52c57119768f27cd463",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / kalasnik-npm-simple-test

Package

Name
kalasnik-npm-simple-test
View open source insights on deps.dev
Purl
pkg:npm/kalasnik-npm-simple-test

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    },
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "send_data.js",
            "sha256":  "bf6afc3714f6f6338ec4bb0de18f427e94e5d484d99519843e7b43689602c4fe",
            "tlsh":  "4a2116a649d613500ab9c7f859121537f301d537b006cb85796c01bd1ff25a044e2ffc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/kalasnik-npm-simple-test/MAL-2026-17206.json"